Dishwasher spray arm



FIG. 1 is a side elevation view of a dishwasher spray arm showing my new design;

FIG. 2 is a end elevation view thereof with the opposite end being identical;

FIG. 3 is a top plan view thereof;

FIG. 4 is a opposite side elevation view of FIG. 1; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a dishwasher spray arm, as shown and described. 